When I got mine from 440Source, Brandon told me the pins would need to be honed to fit. He said that there are different .990" pin manufacturers and that none of them were actually exactly .990, some a little under some a little over so he had his rods come in for the smallest known diameter and then you can hone them to fit ANY .990 pin.

I've said it before that I think buying a pre balanced kit is a waste of $$ because there is no such thing as ready to run parts. If you have to have all the parts checked to confirm the bob weight anyway, you've already paid for a large portion of a balance job. You might as well pay the shop to finish the job and do the final balance too.

Kevin